I-Tris Base Cas: 77-86-1 99.5% Ikristale emhlophe eqinileyo
Inombolo Yekhathalogu | XD90056 |
Igama lemveliso | Isiseko seTris |
CAS | 77-86-1 |
Ifomula yeemolekyuli | C4H11NO3 |
Ubunzima beMolekyuli | 121.14 |
Iinkcukacha zokuGcina | I-Ambient |
IKhowudi yoMrhumo eHarmonized | 29221900 |
Ukucaciswa kweMveliso
Indawo yokunyibilika | 168.0°C - 172.0°C |
IBanga | IBanga le-USP |
Amanzi | <0.2% |
Arsenic | 1ppm ubukhulu |
Ukuchongwa | I-IR iyahambelana |
pH | 10.0 - 11.5 |
Ilahleko ekomisweni | 0.5% ubukhulu |
Ukunyibilika | Icacile, ayinambala |
Isivavanyi | 99.5% min |
Icalcium | 3ppm ubukhulu |
Intsimbi | 5ppm ubukhulu |
Ubhedu | 1ppm ubukhulu |
Intsalela kwi-Ignition | 0.1% ubukhulu |
Umba onganyibilikiyo | <0.03% |
Iintsimbi ezinzima (Pb) | 5ppm ubukhulu |
I-Chloride | 3ppm ubukhulu |
Imbonakalo | Ukuqina kwekristale emhlophe |
Umbala (20% isisombululo se-aq) | <5 |
Isazisi Ph. Eur | Iyahambelana |
Isetyenziselwa uphando kuphela, hayi ukusetyenziswa komntu | uphando lusetyenziselwa kuphela, kungekhona ukusetyenziswa komntu |
Isishwankathelo:Igama lebrand ye-Tris yi-tris(hydroxymethyl)aminomethane;itromethamine;itromethamine;I-2-amino-2- (hydroxymethyl) -1,3-propanediol.Yikristale emhlophe okanye umgubo.Inyibilika kwi-ethanol nasemanzini, i-soluble kancinane kwi-ethyl acetate kunye ne-benzene, i-ether kunye ne-carbon tetrachloride, i-corrosive ukuya kwi-copper kunye ne-aluminiyam, kunye neekhemikhali ezicaphukisayo.
Iimpawu:I-Tromethamine yi-sodium-free amino buffer base, ephendula kunye ne-H2CO3 kumanzi omzimba ukunciphisa i-H2CO3 kunye nokuvelisa i-HCO32- ngexesha elifanayo.Iyakwazi ukufunxa ii-ion ze-hydrogen kunye ne-acidemia echanekileyo.Inamandla, kwaye inokungena kwi-membrane yeseli, esetyenziswa ngokuqhelekileyo kwi-acute metabolic kunye ne-acidemia yokuphefumla.
Iimpawu zokuthintela:I-Tris isiseko esibuthathaka kunye ne-pKa ye-8.1 kwi-25 ° C;ngokwethiyori yesithinteli, uluhlu olusebenzayo lwe-buffering lwe-Tris buffer luphakathi kwe-pH 7.0 kunye ne-9.2.I-pH yesisombululo samanzi se-Tris base imalunga ne-10.5.Ngokubanzi, i-hydrochloric acid yongezwa ukulungisa ixabiso le-pH kwixabiso elifunekayo, kwaye isisombululo se-buffer esinexabiso le-pH sinokufumaneka.Nangona kunjalo, ingqalelo kufuneka ihlawulwe kwisiphumo sobushushu kwi-pKa ye-Tris.
Isicelo:I-Tris isetyenziswa ngokubanzi kwi-acute metabolic kunye ne-accidemia yokuphefumla.Sisithinteli se-alkaline kwaye sinesiphumo esihle sokuthintela kwi-metabolic acidosis kunye nomsebenzi we-enzymatic.I-Tris isoloko isetyenziswa njengesithinteli sebhayoloji kwaye ihlala iqulunqwe ngamaxabiso e-pH ye-6.8, 7.4, 8.0, kunye ne-8.8.Ifomula yayo yesakhiwo kunye nexabiso le-pH lihluka kakhulu ngeqondo lokushisa.Ngokubanzi i-Chemicalbook ithi kuyo yonke iqondo lokunyuka kweqondo lokushisa, i-pH iyancipha nge-0.03.I-Tris isetyenziswa kakhulu ekulungiseleleni izithinteli kuvavanyo lwebhayoloji yebhayoloji nakwimolekyuli.Umzekelo, i-Tris iyafuneka kuzo zombini ii-TAE kunye ne-TBE buffers (yoku-solubilization ye-nucleic acids) edla ngokusetyenziswa kwimifuniselo ye-biochemical.Kuba iqulethe iqela le-amino, inokungena kwi-condensation reactions kunye ne-aldehydes.